Choose estimates, build simple budgets and interpret financial decisions involving percentages.
Example 1
A meal costs $160.40 for 8 people. Estimate the cost per person by first rounding the total to the nearest whole dollar.
Show worked answer
Answer: 20
- $160.40 rounds to $160.
- Divide by 8:8160= $20.
Example 2
Estimate 52% of $160 by using 50% as a nearby familiar percentage. Give your estimate in dollars.
Show worked answer
Answer: 80
- 52% is close to 50%.
- 50% is one half, so the estimate is 2160= $80.
Example 3
You have $160. Shoes cost $70 before a 10% discount, and delivery costs $7. How many dollars remain after buying them?
Show worked answer
Answer: 90
- The discounted shoes cost 70×10090= $63.
- Add delivery: $70. Subtract from the budget: 160−70= $90.